Improved security of Inline credentials persistence

AWS security credentials of type Inline are now persisted through the Bamboo EncryptionService API on Save for new or existing tasks.

No Real Encryption

Please note that the Bamboo EncryptionService API naming is misleading for the time being - as properly phrased in the method summary of com.atlassian.bamboo.security.EncryptionServiceImpl, the decrypt()/encrypt() methods just provide means to obfuscate sensitive data.

Real encryption is available by using the integration with Identity Federation for AWS (Bamboo) instead.

No Automatic Migration

Existing task configurations are not upgraded automatically, you need to explicitly edit and save them once. Given most users want to upgrade to shared AWS credentials managed via Identity Federation for AWS instead, we felt this to be an acceptable compromise - please get in touch if your situation requires a different approach, we are willing to discuss this on a case by case base.